This article is about the 2004 Major League Baseball season only. For information on all of baseball, see 2004 in baseball.
The 2004 MLB season was the 101st season of Major League Baseball. The season ended when the Boston Red Sox defeated the St. Louis Cardinals in a four-game World Series sweep. This season was particularly notable since the Red Sox championship broke the 86-year-long popular myth known as the Curse of the Bambino. The Red Sox were also the first team to ever come back from a 3-0 postseason series deficit, in the ALCS against the New York Yankees.